package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;


@Service
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;

    @Autowired
    private DishMapper dishMapper;
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.insert(setmeal);
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDishes) {
            setmealDish.setSetmealId(setmeal.getId());
            setmealDishMapper.insert(setmealDish);
        }

    }

    @Override
    public void startOrStop(Integer status, Long id) {

        List<Long> setmealIds = setmealDishMapper.getDishIdBySetmealId(id);
        for (Long setmealId : setmealIds) {
            Dish dishById = dishMapper.getById(setmealId);
            if(dishById.getStatus() == 0){
                throw new RuntimeException(MessageConstant.SETMEAL_ENABLE_FAILED);
            }
        }
        Setmeal setmeal = new Setmeal();
        setmeal.setStatus(status);
        setmeal.setId(id);
        setmealMapper.updateStatus(setmeal);
    }

    @Override
    public SetmealVO getByIdWithSetmealDishes(Long id) {
        SetmealVO setmealVO = new SetmealVO();
        Setmeal setmeal = setmealMapper.getById(id);
        BeanUtils.copyProperties(setmeal,setmealVO);
        List<SetmealDish> setmealDishList = setmealDishMapper.getSetmealDishBySetmealId(id);
        setmealVO.setSetmealDishes(setmealDishList);
        return setmealVO;
    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> setmealVO = setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(setmealVO.getTotal(),setmealVO.getResult());
    }

    @Override
    public void deleteBatch(List<Long> ids) {
        //判断是否启售
        for (Long id : ids) {
            Setmeal setmeal = setmealMapper.getById(id);
            if (setmeal.getStatus() == 1){
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }
        }
        setmealMapper.deleteByIds(ids);
        setmealDishMapper.deleteByIds(ids);
    }


    @Override
    public void updateWithSetmealDish(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);

        setmealMapper.update(setmeal);
        setmealDishMapper.deleteAll(setmealDTO.getId());
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if(!setmealDishes.isEmpty()) {
            for (SetmealDish setmealDish : setmealDishes) {
                setmealDish.setSetmealId(setmealDTO.getId());
                setmealDishMapper.insert(setmealDish);
            }
        }
    }

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}
